Pipe-joint.



. WESTON.

PIPE JOINT.

APPLICATION FILED SBM-28. 1914.

` Patented Mar. 16, 1915.

Witnesses Inventor Attoreys rra THOMAS I. WESTON, 0F COLUMBIA, SOUTH CAROLINA.

PIPE-JOINT.

Specification of LetterslPatent.

Patented Mar. 16, 1915.

' Application led September 28, 1914, Serial No. 863,934.

To all whom t may concern.'

Be it known that L'THoMAs I iVnsTo-N, a citizen of the 'United States, residing Aat VColumbia, in the county of Richland and State of South Carolina, have mvented aV new and useful Pipe-Joint, of which the folA lowing is a specification. i

' The present invention appertains to pipe joints, and aims to provide a n ovel and 1mproved j ointY for concrete and various other pipes, conduits and the like.

This invention contemplates the provi-sion of a pipe 'or conduit joint, embodying male and female or spigot and socket portions upon the ends of the pipe or conduit sections, which are adapted to coperate 1n a novel manner, whereby the pipe sections-may be -readily and properly assembled, and may then be securely lockedtogether. a

It is also ywithin the scope of the inven- Y tion, toprovide a pipe joint'of simple formation, which may be inexpensively molded or otherwise manufactured, andv which will be convenient,jpractical and eflicient'in its use.

With the foregoingand other objects in view which will appear as the description roceeds, .the invention resides in the comliination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood' that changes in the precise embodiment of the invention herein disclosed, canbe made within 'the scope of what 1s claimed, withu out departing from the 'spirit of the invention.

The invention is illustrated in its preferred embodiment in the accompanying Figure 1 is an elevation of a pipe or con-v duitv section formed withvthe improved male and female or spigot and socket ends. Fig.-

2 is an enlarged sectional detail taken through the joint between two'pipe or conduit sections. 'Y

In carrying out the invention, each of the pipe or conduit sections 1 'is provided at one end with a male or spigot joint member 4, and at its other or opposite end with a female or socket portion 3, whereby when the pipe sections are laid together properly, the spigot and socket portions will mate or complement each other, the socketportions 3 receiving the spigots 2 as suggested in Fig. 2.

The spigot 4 has its circumference or periphery tapered from the corresponding end of the p1pe section 1, while the interior of the sp1got 2 1s flush with the linterior of the body of the pipe section, the spigot being in form of an annular outstanding flange projecting from the end of the'pipe section immediately around the passage or bore thereof. The circumference or periphery of lthe lspigot 4 is formed with-an oppositely tapered portion or beveled shoulder 5 facing the corresponding end ofthe pipe section. The beveled shoulder` 5 is disposed adjacent the free edge of the spigot 4 'and the tapered 'portion' between the shoulder 5 and the end of the pipe section 1, has its basal portion `7 ofv a greater diameter than the annular ridge formed by the shoulder 5. The tapered por` tion 8 of the spigot between the `shoulder 5 and thefree edge of the spigot, is tapered to a less degree than the tapered portion 6.

The female or socket 'portion 3 of each pipe section 1 embodies the socket or annular rabbet 9 surrounding the passage or bore of vthe pipe section Vat the corresponding end vcorresponding end of the pipe section 1, is ,tapered to a less degree .than the tapered portion 11, whereby the formation of the female or socket. portion 3 is precisely the reverse of the formation of the male or spigot portion 4.

vThe ridge formed by the shoulder 5 lof the vspigotis of slightly smaller diameter than the ridge formed by the shoulder 10 ofv the socket portion 3, and the outer diameter of the free portion of the spigot is practically' the same as the diameter of the bottom porltion of the socket' 9, while the diameter of the mouth portion of the socket 9 is practically the same as the basal portion 7 of the spigot 4. When the lpipe sections are assembled, as suggested .in Fig. 2, the shoulders 5 and 10 of the spigot and the socket portions will be substantiallyparallel, as well as the respective tapered portions 6 and 11,v and L8 andl, the spigotbeing of a size tov fit snugly' withinV thefsoeket or recess').

As illustrated, the pipe sections are molded ing the female or socket portion, solas to V reinforce the annular flange lor lip formedv by the socket 19. In order. to reinforce the -'spigot.4, an annular yreinforcing 17 -is embedded 'withiny the spigot irland the corresponding end portionof the body portion'of -rcoperating with the rods 18..

'the pipe section. The reinforcing l1f? em-` .b'odiesthe shortlongitudin'al wires 'or rods- 18', and the rings orannular wiresor rods 19.

The pipe' sections may be laidinitwofd'ifg ferent. manners, Viz., either by a' wiped joint, j. presently tions, using -for-byyapoured joint, each of which .will be described.: 4.In laying the'pipe secinterior i "f the spigot and socketportions 4 pipe sections lhave been .properly laid` and j' j terlock.

.Y I' readily. slipped longitudinally into* proper. v .positiom a'ndwhenA the f and 3,respectively, Iare wiped with mortar 'l 35` 'coat the' .sanie'j properly. Then, after" the tof-.the properth-iclmess, sol as toi'cover or aliiied, they.. -arejnioved longitudinally to?` the- 'mating spigot and socketvpor-tions 4 and 3, respectively, to in# lthe spigot v'and socket portions,they maybe pipe sections are slid f home l 'relative to one another, the .mortar which was -previously wiped upon the joint portionsfwill 'bef brought together and comn pressed -v tightly between-'thesame so as to I lill 'up the. CreViCeS, as designated at 20 in Fig. 2. After'themortar 20has`solidified or hardened, the same vwill forman annularv :keyv betweenfthe opposed shoulders .5v andO, y .-of'the'spigot andv l :l .j oint,` 1 to y.securely in alinernent. 1 p j "the spigot and socket portions not only en-l'y lock the pipe sectionsv againstseparation, j

The' tapered formations j of ,ables them 'to be. readily vassembled,;lout litis -1 to" be noted that. they Vwill also be strength? thermore, when, .tjhe. sections"v are :forced home, the complementing tapered-portions. f 8-11 and 6 13'of the .joint'portio'ns will "enefd, to avoid possible breakage,-and fur.-

` -f't'ior .Contact with veach, other` to center the?v 5,-f lpipe sections relative-'- t'oI one another and to the wiped joint, the exterior and "Due to thetaper'edl formations of,

vsocket portionsl @fri-,bef

and to firmly holdthem. v

holdthem concentric or coaxial with their passages or bores iiush. This is an important feature. f' A v v When the `poured jointv is used, the pipe 1 sections are irst brought longitudinally to- 70 gether, so thatthe spigot 4 enters the socket 9, whichwill causev the pipe sections to aline and remain fconcentric or coaxial," as above'. explained'. 'f A portion offthesocket portion 3 maytheii be brokenaway, as indicated by the dotted line 2l inF ig. v1,A to provide an `'opening thrO-llgl Whichthe mortar or plas tic material may be poured. into the annular V space between' thev spigot and socket portions, to" thereby foiinthevkey 20 after the mortar hashardened.' The mortar will also fill up :the portion which` isjbroken away, v l, u

as' at 2 1'in Fig. 1.l

l Whenthe pipe 'sections are assembled, it will `be noted that the tapered portions 13, '85 11, .8 and 6' are' tapered in thev same' direc-' tion, while the. shoulders -10' and 5 are tapered: in' thel oppositev direction jand face l eachother iii order thatv the mortar 'will' lodge properly between the-shoulders and l n a tapered portions.- y Particular attention `is f .also directed to the f fact that the1 tapered portions 11 and'are arrangedjat a greater angle relative to the axis ofthe pipesections thanv the ltapered 'portions 13 and 8, whereby the-. tapered.' portions 11 and G-contact 'at opposite sides of the shoulders 'to centerA the pipe sections relative to one another and to vclose the space b'etv'reen the-shoulders' and .tapered portions, .and furthermore, the an- '100 glesbetw'een the 'shoulderl 10 `and tapered portions 13 and-'1 1 andbetween the shoulder 5` vand `tapered' portions-.8 and. 6 are obtuse"v iangles, whereby the liabilityof -the'parts chipping or,l breaking' -of will be vreduced to 105 al minimum, and furthermore, the pipe sec# tions may be readily separated prior to the introduction'ofthe mortar, without the lia- 'l 'bility of the shoulders catching each other` and' impeding .thewithdrawal o f the spigot l110 ,from the socket.

'From the foregoing, taken in connection l.wjt'ldthe drawing, the advantages and .capabilities 'of the `invention will -be .obvious to'.' 5

.'those versed inthe art, it is thought,without 115 further comment.being'necessary. It will ,:be apparentthat the. spigot and' socket p0r-` vtions may be constructed in Variouspropon' vti'o'ns5aiid sizes, according to the character' of pipe or conduit-sections upon which they v120. .arev'utilized, andaccording to the Various othercircurnstances; l l i. .Q It will vof vcourse be understood .that my inventionconsisting inthe novel construction ofljoint disclosedis not lconfined in its 125 use'tothe'particular fornil shown. The term spigot has been used in describing the inner f tapering'v member of the'joint 'but it is to be understood that7 the term :is used merelyl for j convenience of description and notas a limi- 130 tation deining the form of the inner member.

Having lthus described the invention, what is claimed as new is 1. A joint of the type described comprising two members one having a tapered socket kand the other having a tapered spigot, the

socket and spigot being so shaped that when the spigot isinserted in the socket its outer surface will make contact therewith at its free end portion and at its basal portion,

an intermediate portion of the socket and spigot between the ends thereof being separated from each other by depressions so shaped as to leave a shoulder in the socket on the side of the depression next to the tapered end andv to leave a shoulder on the spigot on the side of the depression next to the free end, and a filling material in said depressions forming with said shoulders a key to hold the parts together.

2. A joint of the type described comprising two members one having a tapered socket and the other having a -tapered spigot, the socket and spigot being so shaped that when thespigot is inserted in the socket its outer surface will make Contact therewith at its free end portion and at its `basal portion, an intermediate portion of the socket and spigot between'the ends thereof being separated from each other by depressions so shaped that the surfaces of the socket and g spigot gradually approach each other at their ends' and to leave la shoulder in the` socket on the sidey of Athe depression next to the tapered end and to leave a shoulder on the spigot on the side of the depression next to the free end,V and a filling material in said depression forming with said shoulders a' depressionsy so shapled as to leave a shoulder` e side of the depression in the socket on t j next to the tapered end and to leave a shoulder on the spigot on the side of the depression next tothe free end, and a filling material in said depressions forming with said shoulders a key'to hold the parts together.

In testimony'that I claim the foregoing as my own, I have hereto aiixed my signature in the presence of two witnesses.

' THOMAS I; WESTON.

Witnesses:

O. G. SMITH, F. T. BULL). 

